My nephew is wanting to build a couple ar's off 80 % receivers while I still have a mill for him to use .
He's been rather helpful as I've been cleaning out the shop so I thought I'd buy the tools for him .
Everything I see is for using jigs , so my first question is , what lenght endmills to get ? That's over all gauge lenght not flute .
I should note here that I have a 50 taper machine so clearance for the buffer tower is needed for both pockets
Next is ... is there any real reason to use a reamer for fire control pins over good quality carbide drills ?